Application of the Transtheoretical Model to physically active adults

Area of Science:

• Exercise science
• Behavioral science
• Health psychology

Background:

• Regular physical activity offers significant health benefits.
• Interventions to improve exercise adherence have yielded inconsistent results.
• Studying individuals with established exercise habits can reveal effective maintenance strategies.

Purpose of the Study:

• Compare individuals in the action (ACT) and maintenance (MT) stages of the Transtheoretical Model (TTM).
• Investigate physiological and psychosocial differences between ACT and MT stages.
• Hypothesize differences align with TTM theory and prior research.

Main Methods:

• Cross-sectional study design.
• Examined TTM components, exercise behavior, cardiovascular variables, and peak oxygen uptake (VO2peak).
• Data collected from 57 physically active college students using questionnaires and maximal exercise testing.

Main Results:

• Maintenance stage participants reported greater weekly exercise volume and longer consistent activity duration.
• Maintenance stage participants exhibited higher VO2peak and systolic blood pressure, controlling for gender.
• Maintenance stage participants scored higher on decisional balance and utilized more processes of change.

Conclusions:

• Aerobic capacity (VO2peak) supports classification into ACT and MT stages.
• TTM component differences were partially supported; behavioral strategies were more prevalent in longer-term active individuals.
• Longitudinal studies are recommended to assess if targeting behavioral change processes enhances long-term exercise adherence.